Both the Knob and Cup components of our custom Tie-Down are machined from solid blocks of aluminum like all our parts, and we have included tough brass thread inserts for extensive use. This is not your average cast tie-down! We’ve made two versions: one with M10 and the other with 3/8″ threads, in order to make sure we cover everyone’s needs. The grip is really tight, and the cup is a neat fit for both 100 and 75mm bowls – the smaller version of our classic tie-down. This new accessory eliminates any issue an operator might have with the length of their existing tie-down. What’s not to love? The same tie-down is used with our MYT 150mm Half Ball Adaptor and Mitchell Base Adaptor. Visit our website at http://www.mytworks.com for more information